Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 2 - Graphs and Functions - 2.3 Functions - 2.3 Exercises: 7

Answer

domain: $\left\{x| x \ge 0\right\}$

Work Step by Step

In $g(x) = \sqrt{x}$, the value of $x$ can be any non-negative real number. The value of $x$ cannot be negative because there is no real number that when squared gives a negative value. Thus, the domain of the function in Exercise 6 is: $\left\{x| x \ge 0\right\}$
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